How can I force mesh to remesh along a polyline?
In response to you comments:
Apart from the Knife Project and using a Shrinkwrap Modifier, the only thing i can think of, is using a Shrinkwrap Modifier with a specific Vertex Group. You would have to manually select the vertices around the edge of the polyline mesh object.


If the vertices need to stay on the same height you could also extrude the polyline mesh object and have the Shrinkwrap Mode: set to surface.
For the &quot;more control over the spacing and remeshing&quot; (if you were to delete any unwanted faces) the commands Grid Fill and Triangulate Faces might come in handy. And possibly Randomize to make it look more organic afterwards.
That's all i got. Hope it helps. In any case, good luck. : )